The Terrapins 



Small or even half-grown individuals do not exhibit the 

 marked, globular formation of the carapace; their shell is 

 much like that of C. concinna; the dome-like development 

 appears with maturity. 



Distribution. From the records at hand, this species seems 

 to be restricted to southern Georgia and Florida. 



THE MOBILE TERRAPIN 

 Cbrysemys mobiliensis, (Holbrook) 



Another terrapin characterised by the globular formation 

 of the front of the carapace, though to a lesser degree than with 

 C. floridana. This species is distinguished by the very fine 

 serrations of the upper jaw. 



Colouration. Markings very similar J:o C. concinna. Though 

 the carapace is more highly arched than with that species, some 

 authorities consider the Mobile Terrapin to be but a larger, 

 Southern race of it. We will provisionally treat this reptile 

 as distinct, owing to its higher shell and finely serrated upper 

 mandible. 



Dimensions. Attains a length of 14 inches. 



Distribution. Southern portions of the Gulf States. 



THE ALABAMA TERRAPIN 

 Cbrysemys ababamensis, (Baur) 



Carapace rather high and globular in the front. Head 

 of fair size. 



Colouration. The pattern above is much like that of C. 

 rubriventris, but the plastron is yellow instead of deep orange or 

 red, and is marked with brown reticulations. 



Dimensions. The carapace of an adult example is about 

 12 inches long. 



Distribution. The type specimens were taken near Mobile 

 Bay, Alabama, which locality points to the species displaying 

 a tendency to frequent salt marshes. 



THE RED-BELLIED TERRAPIN 



Cbrysemys rubriventris, (LeConte) 



Differs from the preceding in the much narrower shell, 

 which is well rounded at the front and rear borders; the jaws 

 are deeply serrated. 



33 



